CN207557803U - A kind of high-voltage frequency conversion bypass system - Google Patents
A kind of high-voltage frequency conversion bypass system Download PDFInfo
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- CN207557803U CN207557803U CN201721755187.1U CN201721755187U CN207557803U CN 207557803 U CN207557803 U CN 207557803U CN 201721755187 U CN201721755187 U CN 201721755187U CN 207557803 U CN207557803 U CN 207557803U
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- bypass
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Abstract
The utility model discloses a kind of high-voltage frequency conversion bypass systems, belong to electrical system field.The high-voltage frequency conversion bypass system carries out the switching of main circuit by high-pressure knife switch, high-voltage circuitbreaker and high voltage connector, interlocking between two high-pressure knife switchs is carried out by procedure lock, and the division status signal of high-pressure knife switch, high-voltage circuitbreaker and high voltage connector is sent into PLC control modules, the logic control between laggard horizontal high voltage breaker and high voltage connector is analyzed by PLC control modules；On the other hand the setting of touch screen makes to be communicated between touch screen and PLC control modules, convenient for staff's operation and control, control principle is simple on the one hand convenient for the working condition of staff's remote reviewing system.Compared with traditional bypass cabinet, operational efficiency greatly improves the utility model, easy to maintain, and lasting non-failure operation time is long, and automation is realized in operation, has saved system operation cost, personnel is facilitated to operate.
Description
Technical field
The utility model is related to electrical system field, specifically a kind of high-voltage frequency conversion bypass system.
Background technology
At present, domestic high-voltage frequency converter producer majority is not directed to the design of frequency conversion bypass cabinet, production, is all that outsourcing is taken to arrange
It applies, leads to equipment cost height.Furthermore using relay, linear quadratic control principle is answered for existing auto by pass cabinet internal logic control
Miscellaneous, trouble point is more, complicated for operation, is susceptible to maloperation, and since cabinet body structure design is limited, it is impossible to meet different user
Demand, plant maintenance is difficult.
Utility model content
The purpose of this utility model is for above-mentioned technical problem, provides that a kind of control principle is simple, operational efficiency is high, dimension
Protect convenient high-voltage frequency conversion bypass system.
In order to achieve the above objectives, the utility model uses following technical scheme：A kind of high-voltage frequency conversion bypass system, including height
Voltage source cabinet, the high voltage power supply cabinet is interior to be equipped with high-voltage circuitbreaker QF, and high-voltage circuitbreaker QF is sequentially connected in series bypass cabinet I and bypass cabinet
Ⅱ；High-pressure knife switch QS1 and high voltage connector KM1 is equipped in bypass cabinet I, high-pressure knife switch QS2, high pressure are equipped in bypass cabinet II
Contactor KM2, procedure lock DSN and high-voltage circuitbreaker QF1；High-pressure knife switch QS1 ends of incoming cables and high-voltage circuitbreaker QF1 ends of incoming cables are simultaneously
It connects, high-pressure knife switch QS1 leading-out terminals are sequentially connected in series high voltage connector KM1, high-voltage frequency converter, high voltage connector KM2 and high push type broach
Switch QS2, high-pressure knife switch QS2 leading-out terminals and high-voltage circuitbreaker QF1 leading-out terminals and after connecing successively with cable distribution box and load
Concatenation, high-pressure knife switch QS1 are connect with procedure lock DSN both ends respectively with high-pressure knife switch QS2 by connecting rod；High-pressure knife switch
QS1, high voltage connector KM1, high-pressure knife switch QS2, high voltage connector KM2 and high-voltage circuitbreaker QF1 respectively with PLC control modules
Connection, PLC control modules are also connect with touch screen.
Under normal conditions, electricity can be given to electricity by high pressure sensor after high-voltage board electrification to show, electricity is aobvious to pass through itself
Contact concatenates electromagnetic lock, and cabinet door is locked by electromagnetic lock.And since the high-voltage frequency conversion bypass system of the utility model must be on side
Road cabinet cabinet door carries out under the premise of closing, and therefore, setting charged display device DXN can reflect cabinet door in above-mentioned bypass cabinet I
Open and-shut mode, ensure system safety operation.
Setting arrester F, can protect electrical equipment from the harm of high transient overvoltage in bypass cabinet I.
The beneficial effects of the utility model are：
1st, the utility model high-voltage frequency conversion bypass system is carried out by high-pressure knife switch, high-voltage circuitbreaker and high voltage connector
The switching of main circuit carries out the interlocking between two high-pressure knife switchs, and by high-pressure knife switch, high-voltage circuitbreaker by procedure lock
PLC control modules are sent into the division status signal of high voltage connector, laggard horizontal high voltage breaker is analyzed by PLC control modules
Logic control between high voltage connector；The setting of touch screen is on the one hand convenient for the work of staff's remote reviewing system
On the other hand state makes to be communicated between touch screen and PLC control modules, convenient for staff's operation and control, control principle
Simply.
2nd, compared with traditional bypass cabinet, operational efficiency greatly improves the utility model, easy to maintain, continues failure-free operation
Time is long, and automation is realized in operation, has saved system operation cost, personnel is facilitated to operate.
Description of the drawings
Fig. 1 is the connection relationship diagram of the utility model primary system；
Fig. 2 is the PLC configuration figures of each element in the utility model；
Reference numeral：1st, high voltage power supply cabinet；2nd, bypass cabinet I；3rd, high-voltage frequency converter；4th, bypass cabinet II；5th, cable distribution box；
6th, it loads；7th, PLC control modules；8th, touch screen；High-voltage circuitbreaker QF；High-pressure knife switch QS1；High voltage connector KM1；Electrification is aobvious
Showing device DXN；Arrester F；High voltage connector KM2；High-pressure knife switch QS2；Procedure lock DSN；High-voltage circuitbreaker QF 1.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figs. 1-2, a kind of high-voltage frequency conversion bypass system including high voltage power supply cabinet 1, is equipped in the high voltage power supply cabinet 1
High-voltage circuitbreaker QF, high-voltage circuitbreaker QF are sequentially connected in series bypass cabinet I 2 and bypass cabinet II 4；High-pressure knife switch is equipped in bypass cabinet I 2
QS1, high voltage connector KM1, charged display device DXN and arrester F, bypass cabinet II 4 is interior to be equipped with high-pressure knife switch QS2, high pressure
Contactor KM2, procedure lock DSN and high-voltage circuitbreaker QF1；High-pressure knife switch QS1 ends of incoming cables respectively with high-voltage circuitbreaker QF1 inlet wires
End and charged display device DXN simultaneously connect, high-pressure knife switch QS1 leading-out terminals be sequentially connected in series high voltage connector KM1, high-voltage frequency converter 3,
High voltage connector KM2 and high-pressure knife switch QS2 between high voltage connector KM1 and high-voltage frequency converter 3 and connects arrester F, high push type broach
Switch QS2 leading-out terminals and high-voltage circuitbreaker QF1 leading-out terminals and after connecing successively with cable distribution box 5 and loading 6 and concatenating, high push type broach is opened
QS1 is closed to connect with procedure lock DSN both ends respectively by connecting rod with high-pressure knife switch QS2；High-pressure knife switch QS1, high pressure contact
Device KM1, high-pressure knife switch QS2, high voltage connector KM2 and high-voltage circuitbreaker QF1 are connect respectively with PLC control modules 7, PLC controls
Molding block 7 is also connect with touch screen 8.
The utility model according to the size of component in bypass cabinet I 2 and bypass cabinet II 4 and five anti-requirements of high-voltage board, and
In view of the factors such as later easy to maintenance, rational cabinet size is determined.Since high-pressure knife switch QS1 and QS2 cannot pass through electricity
Gas control divide-shut brake, therefore interlocked using procedure lock DSN, in system operation, by high-voltage circuitbreaker QF, QF1, high pressure
Knife-like switch QS1, QS2, the division status signal of high voltage connector KM1, KM2 and the side reflected by charged display device DXN
Road cabinet I 2 and II 4 division status signal of bypass cabinet are sent into PLC control modules 7（High-voltage circuitbreaker QF, QF1, high-pressure knife switch QS1,
QS2, high voltage connector KM1, KM2 are shown according to fig. 2, pass sequentially through respective communication port and auxiliary magnet connection and cable will
Signal is sent into PLC control modules 7, and PLC control modules 7 are communicated by communication port and touch screen 8, and are passed through touch screen 8 and controlled
System operation processed）, and pass through following operation logic PLC program：
The high-voltage frequency conversion bypass system must carry out under the premise of bypass cabinet I 2 and II 4 cabinet door of bypass cabinet are closed.（1）It is high
Buckling frequency circuit runs order of operation：Close high-pressure knife switch QS1, close high voltage connector KM1, close high-pressure knife switch QS2,
High voltage connector KM2,1 power transmission of high voltage power supply cabinet are closed, high-voltage frequency converter 3 is charged；（2）High-pressure frequency-conversion circuit behaviour out of service
Make order：High-voltage frequency converter 3 is shut down, disjunction high voltage connector KM2, disjunction high-pressure knife switch QS1, disjunction high voltage connector KM2,
The automatic disjunction of disjunction high-pressure knife switch QS2, high-voltage circuitbreaker QF, high voltage power supply cabinet 1 power off；（3）Manual power frequency circuit operation behaviour
Make order：High-voltage frequency converter 3 is shut down, and closes high-voltage circuitbreaker QF1, high-voltage circuitbreaker QF automatic closings, and high voltage power supply cabinet 1 is sent
Electricity；（4）Manual power frequency circuit order of operation out of service：The automatic disjunction of disjunction high-voltage circuitbreaker QF1, high-voltage circuitbreaker QF, it is high
Voltage source cabinet 1 powers off；（5）Automatic power frequency circuit operation order of operation：PLC control modules 7 detect that frequency conversion circuit is in and disconnect
Switching signal is sent out after state, high-voltage circuitbreaker QF1 is made to close a floodgate, high-voltage circuitbreaker QF automatic closings, 1 power transmission of high voltage power supply cabinet；
（6）Automatic power frequency circuit order of operation out of service：PLC control modules 7 send sub-gate signal, make high-voltage circuitbreaker QF1 separating brakes,
The automatic disjunctions of high-voltage circuitbreaker QF, high voltage power supply cabinet 1 power off.
The order of operation that the utility model frequency conversion circuit automatically switches to power frequency circuit is：When PLC control modules 7 detect
During 3 failure of high-voltage frequency converter, automatic disjunction high voltage connector KM1, high-voltage circuitbreaker QF and high voltage connector KM2, and make high pressure
Circuit breaker Q F1 automatic closings, so as to make high-voltage circuitbreaker QF automatic closings.
More than logic control is carried out by the mutual cooperation of PLC control modules 7 and each component and touch screen 8, PLC controls
The application of module 7 simplifies circuit, and the application of touch screen 8 makes control easy to operate simple.
Claims (3)
1. a kind of high-voltage frequency conversion bypass system, including high voltage power supply cabinet（1）, it is characterised in that：The high voltage power supply cabinet（1）Inside it is equipped with
High-voltage circuitbreaker QF, the high-voltage circuitbreaker QF are sequentially connected in series bypass cabinet I（2）With bypass cabinet II（4）；The bypass cabinet I（2）It is interior
Equipped with high-pressure knife switch QS1 and high voltage connector KM1, bypass cabinet II（4）It is interior to be equipped with high-pressure knife switch QS2, high voltage connector
KM2, procedure lock DSN and high-voltage circuitbreaker QF1；The high-pressure knife switch QS1 ends of incoming cables and high-voltage circuitbreaker QF1 ends of incoming cables are simultaneously
It connects, high-pressure knife switch QS1 leading-out terminals are sequentially connected in series high voltage connector KM1, high-voltage frequency converter（3）, high voltage connector KM2 and high pressure
Knife-like switch QS2, high-pressure knife switch QS2 leading-out terminals and high-voltage circuitbreaker QF1 leading-out terminals and after connecing successively with cable distribution box（5）With
Load（6）Concatenation, high-pressure knife switch QS1 are connect with procedure lock DSN both ends respectively with high-pressure knife switch QS2 by connecting rod；Institute
State high-pressure knife switch QS1, high voltage connector KM1, high-pressure knife switch QS2, high voltage connector KM2 and high-voltage circuitbreaker QF1 difference
With PLC control modules（7）Connection, PLC control modules（7）Also with touch screen（8）Connection.
2. a kind of high-voltage frequency conversion bypass system according to claim 1, it is characterised in that：The bypass cabinet I（2）Inside it is equipped with
Charged display device DXN.
3. a kind of high-voltage frequency conversion bypass system according to claim 1 or 2, it is characterised in that：The bypass cabinet I（2）It is interior
Equipped with arrester F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755187.1U CN207557803U (en) | 2017-12-15 | 2017-12-15 | A kind of high-voltage frequency conversion bypass system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721755187.1U CN207557803U (en) | 2017-12-15 | 2017-12-15 | A kind of high-voltage frequency conversion bypass system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207557803U true CN207557803U (en) | 2018-06-29 |
Family
ID=62664456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721755187.1U Active CN207557803U (en) | 2017-12-15 | 2017-12-15 | A kind of high-voltage frequency conversion bypass system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207557803U (en) |
-
2017
- 2017-12-15 CN CN201721755187.1U patent/CN207557803U/en active Active
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